Host fish quality may explain the status of endangered<i>Epioblasma torulosa rangiana</i>and<i>Lampsilis fasciola</i>(Bivalvia∶Unionidae) in Canada
Bibliographic record
Abstract
Freshwater unionid mussels are among the most endangered groups of organisms in the world. They develop indirectly via a host, usually a fish, and this dependence appears to limit the reproduction and distribution of freshwater mussels. Epioblasma torulosa rangiana and Lampsilis fasciola are 2 endangered species in Canada. Epioblasma t. rangiana has a low abundance and limited distribution, whereas L. fasciola has a higher abundance and less-constrained distribution. Three known host species were examined for each mussel species. Results were that: 1) E. t. rangiana glochidia had significantly higher metamorphosis rates (i.e., proportion of attached glochidia that successfully metamorphosed to the juvenile mussel stage) on Etheostoma exile (mean ± SE: 44 ± 9%) and Cottus bairdi (42 ± 6%) than on Etheostoma nigrum (10 ± 3%) and 2) L. fasciola glochidia had significantly higher metamorphosis rates on Micropterus dolomieu (82 ± 2%) and Micropterus salmoides (63 ± 8%) than on C. bairdi (37 ± 7%). Variation in the co-occurrence of mussels and their primary vs marginal host species (i.e., high vs low infestation and metamorphosis rates, respectively) appears to explain the distributions and abundances of these 2 endangered mussels in Canada. An understanding of the quality of different host fishes of endangered mussel species is needed to facilitate effective conservation strategies.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".